21887268

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{811}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 55384896

約数和(自身を除く): 33497628

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 173, 346, 519, 692, 811, 1038, 1622, 2076, 2249, 2433, 3244, 4498, 4866, 6747, 8996, 9732, 10543, 13494, 21086, 26988, 31629, 42172, 63258, 126516, 140303, 280606, 420909, 561212, 841818, 1683636, 1823939, 3647878, 5471817, 7295756, 10943634, 21887268]

約数ペア:

[(1, 21887268), (2, 10943634), (3, 7295756), (4, 5471817), (6, 3647878), (12, 1823939), (13, 1683636), (26, 841818), (39, 561212), (52, 420909), (78, 280606), (156, 140303), (173, 126516), (346, 63258), (519, 42172), (692, 31629), (811, 26988), (1038, 21086), (1622, 13494), (2076, 10543), (2249, 9732), (2433, 8996), (3244, 6747), (4498, 4866)]